EP 0208088 B1 19890809 - DEVICE FOR PRODUCING A THREE-PHASE VOLTAGE SYSTEM WITH A NEUTRAL CABLE TO BE LOADED
Title (en)
DEVICE FOR PRODUCING A THREE-PHASE VOLTAGE SYSTEM WITH A NEUTRAL CABLE TO BE LOADED
Publication
Application
Priority
DE 3517175 A 19850513
Abstract (en)
[origin: US4719557A] A device which generates a symmetrical output voltage system at the output of a transformer with a neutral point which can carry current on the secondary side or a Y-point former, even if the load is asymmetrical, each primary terminal being fed from a pair of bridge arms of a pulsed inverter. The device further comprises a decoupling network in which the conductor voltages measured on the secondary side are converted into substitute actual values according to the structure of the transformer circuit, which actual values represent symmetrical output voltages or a likewise symmetrical system with a free Y-point. These substitute actual values are controlled to form a system of symmetrical reference values.
IPC 1-7
IPC 8 full level
H02M 1/084 (2006.01); H02M 7/525 (2006.01)
CPC (source: EP US)
H02M 1/084 (2013.01 - EP US); H02M 7/525 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB LI SE
DOCDB simple family (publication)
EP 0208088 A1 19870114; EP 0208088 B1 19890809; AT E45448 T1 19890815; DE 3664987 D1 19890914; US 4719557 A 19880112
DOCDB simple family (application)
EP 86106481 A 19860513; AT 86106481 T 19860513; DE 3664987 T 19860513; US 86275586 A 19860513